Merge 5.16-rc3 into staging-next

We need the staging driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-04 02:10:58 +00:00 · 2021-11-29 08:03:05 +01:00 · 2021-11-29 08:03:05 +01:00 · 24cd719712
parent 84c365f8ff d58071a8a7
commit 24cd719712
721 changed files with 7544 additions and 6175 deletions
--- a/.mailmap
+++ b/.mailmap
@ -71,6 +71,9 @@ Chao Yu <chao@kernel.org> <chao2.yu@samsung.com>
 Chao Yu <chao@kernel.org> <yuchao0@huawei.com>
 Chris Chiu <chris.chiu@canonical.com> <chiu@endlessm.com>
 Chris Chiu <chris.chiu@canonical.com> <chiu@endlessos.org>
+Christian Borntraeger <borntraeger@linux.ibm.com> <borntraeger@de.ibm.com>
+Christian Borntraeger <borntraeger@linux.ibm.com> <cborntra@de.ibm.com>
+Christian Borntraeger <borntraeger@linux.ibm.com> <borntrae@de.ibm.com>
 Christophe Ricard <christophe.ricard@gmail.com>
 Christoph Hellwig <hch@lst.de>
 Colin Ian King <colin.king@intel.com> <colin.king@canonical.com>
--- a/Documentation/admin-guide/laptops/thinkpad-acpi.rst
+++ b/Documentation/admin-guide/laptops/thinkpad-acpi.rst
@ -1520,15 +1520,15 @@ This sysfs attribute controls the keyboard "face" that will be shown on the
 Lenovo X1 Carbon 2nd gen (2014)'s adaptive keyboard. The value can be read
 and set.

- 1 = Home mode
- 2 = Web-browser mode
- 3 = Web-conference mode
- 4 = Function mode
- 5 = Layflat mode
+- 0 = Home mode
+- 1 = Web-browser mode
+- 2 = Web-conference mode
+- 3 = Function mode
+- 4 = Layflat mode

 For more details about which buttons will appear depending on the mode, please
 review the laptop's user guide:
-http://www.lenovo.com/shop/americas/content/user_guides/x1carbon_2_ug_en.pdf
+https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/x1carbon_2_ug_en.pdf

 Battery charge control
 ----------------------
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@ -1099,7 +1099,7 @@ task_delayacct
 ===============

 Enables/disables task delay accounting (see
-:doc:`accounting/delay-accounting.rst`). Enabling this feature incurs
+Documentation/accounting/delay-accounting.rst. Enabling this feature incurs
 a small amount of overhead in the scheduler but is useful for debugging
 and performance tuning. It is required by some tools such as iotop.

--- a/Documentation/arm/marvell.rst
+++ b/Documentation/arm/marvell.rst
@ -104,6 +104,8 @@ Discovery family

                Not supported by the Linux kernel.

+  Homepage:
+        https://web.archive.org/web/20110924171043/http://www.marvell.com/embedded-processors/discovery-innovation/
  Core:
 	Feroceon 88fr571-vd ARMv5 compatible

@ -120,6 +122,7 @@ EBU Armada family
        - 88F6707
        - 88F6W11

+    - Product infos:   https://web.archive.org/web/20141002083258/http://www.marvell.com/embedded-processors/armada-370/
    - Product Brief:   https://web.archive.org/web/20121115063038/http://www.marvell.com/embedded-processors/armada-300/assets/Marvell_ARMADA_370_SoC.pdf
    - Hardware Spec:   https://web.archive.org/web/20140617183747/http://www.marvell.com/embedded-processors/armada-300/assets/ARMADA370-datasheet.pdf
    - Functional Spec: https://web.archive.org/web/20140617183701/http://www.marvell.com/embedded-processors/armada-300/assets/ARMADA370-FunctionalSpec-datasheet.pdf
@ -127,9 +130,29 @@ EBU Armada family
  Core:
 	Sheeva ARMv7 compatible PJ4B

+  Armada XP Flavors:
+        - MV78230
+        - MV78260
+        - MV78460
+
+    NOTE:
+	not to be confused with the non-SMP 78xx0 SoCs
+
+    - Product infos:   https://web.archive.org/web/20150101215721/http://www.marvell.com/embedded-processors/armada-xp/
+    - Product Brief:   https://web.archive.org/web/20121021173528/http://www.marvell.com/embedded-processors/armada-xp/assets/Marvell-ArmadaXP-SoC-product%20brief.pdf
+    - Functional Spec: https://web.archive.org/web/20180829171131/http://www.marvell.com/embedded-processors/armada-xp/assets/ARMADA-XP-Functional-SpecDatasheet.pdf
+    - Hardware Specs:
+        - https://web.archive.org/web/20141127013651/http://www.marvell.com/embedded-processors/armada-xp/assets/HW_MV78230_OS.PDF
+        - https://web.archive.org/web/20141222000224/http://www.marvell.com/embedded-processors/armada-xp/assets/HW_MV78260_OS.PDF
+        - https://web.archive.org/web/20141222000230/http://www.marvell.com/embedded-processors/armada-xp/assets/HW_MV78460_OS.PDF
+
+  Core:
+	Sheeva ARMv7 compatible Dual-core or Quad-core PJ4B-MP
+
  Armada 375 Flavors:
 	- 88F6720

+    - Product infos: https://web.archive.org/web/20140108032402/http://www.marvell.com/embedded-processors/armada-375/
    - Product Brief: https://web.archive.org/web/20131216023516/http://www.marvell.com/embedded-processors/armada-300/assets/ARMADA_375_SoC-01_product_brief.pdf

  Core:
@ -162,29 +185,6 @@ EBU Armada family
  Core:
 	ARM Cortex-A9

-  Armada XP Flavors:
-        - MV78230
-        - MV78260
-        - MV78460
-
-    NOTE:
-	not to be confused with the non-SMP 78xx0 SoCs
-
-    Product Brief:
-	https://web.archive.org/web/20121021173528/http://www.marvell.com/embedded-processors/armada-xp/assets/Marvell-ArmadaXP-SoC-product%20brief.pdf
-
-    Functional Spec:
-	https://web.archive.org/web/20180829171131/http://www.marvell.com/embedded-processors/armada-xp/assets/ARMADA-XP-Functional-SpecDatasheet.pdf
-
-    - Hardware Specs:
-
-        - https://web.archive.org/web/20141127013651/http://www.marvell.com/embedded-processors/armada-xp/assets/HW_MV78230_OS.PDF
-        - https://web.archive.org/web/20141222000224/http://www.marvell.com/embedded-processors/armada-xp/assets/HW_MV78260_OS.PDF
-        - https://web.archive.org/web/20141222000230/http://www.marvell.com/embedded-processors/armada-xp/assets/HW_MV78460_OS.PDF
-
-  Core:
-	Sheeva ARMv7 compatible Dual-core or Quad-core PJ4B-MP
-
  Linux kernel mach directory:
 	arch/arm/mach-mvebu
  Linux kernel plat directory:
@ -436,7 +436,7 @@ Berlin family (Multimedia Solutions)
  - Flavors:
 	- 88DE3010, Armada 1000 (no Linux support)
 		- Core:		Marvell PJ1 (ARMv5TE), Dual-core
-		- Product Brief:	http://www.marvell.com.cn/digital-entertainment/assets/armada_1000_pb.pdf
+		- Product Brief:	https://web.archive.org/web/20131103162620/http://www.marvell.com/digital-entertainment/assets/armada_1000_pb.pdf
 	- 88DE3005, Armada 1500 Mini
 		- Design name:	BG2CD
 		- Core:		ARM Cortex-A9, PL310 L2CC
--- a/Documentation/bpf/index.rst
+++ b/Documentation/bpf/index.rst
@ -15,7 +15,7 @@ that goes into great technical depth about the BPF Architecture.
 libbpf
 ======

-Documentation/bpf/libbpf/libbpf.rst is a userspace library for loading and interacting with bpf programs.
+Documentation/bpf/libbpf/index.rst is a userspace library for loading and interacting with bpf programs.

 BPF Type Format (BTF)
 =====================
--- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
@ -17,9 +17,10 @@ properties:
    oneOf:
      - enum:
          - fsl,imx7ulp-lpi2c
-          - fsl,imx8qm-lpi2c
      - items:
-          - const: fsl,imx8qxp-lpi2c
+          - enum:
+              - fsl,imx8qxp-lpi2c
+              - fsl,imx8qm-lpi2c
          - const: fsl,imx7ulp-lpi2c

  reg:
--- a/Documentation/doc-guide/sphinx.rst
+++ b/Documentation/doc-guide/sphinx.rst
@ -27,7 +27,7 @@ Sphinx Install
 ==============

 The ReST markups currently used by the Documentation/ files are meant to be
-built with ``Sphinx`` version 1.3 or higher.
+built with ``Sphinx`` version 1.7 or higher.

 There's a script that checks for the Sphinx requirements. Please see
 :ref:`sphinx-pre-install` for further details.
@ -43,10 +43,6 @@ or ``virtualenv``, depending on how your distribution packaged Python 3.

 .. note::

-   #) Sphinx versions below 1.5 don't work properly with Python's
-      docutils version 0.13.1 or higher. So, if you're willing to use
-      those versions, you should run ``pip install 'docutils==0.12'``.
-
   #) It is recommended to use the RTD theme for html output. Depending
      on the Sphinx version, it should be installed separately,
      with ``pip install sphinx_rtd_theme``.
@ -55,13 +51,13 @@ or ``virtualenv``, depending on how your distribution packaged Python 3.
      those expressions are written using LaTeX notation. It needs texlive
      installed with amsfonts and amsmath in order to evaluate them.

-In summary, if you want to install Sphinx version 1.7.9, you should do::
+In summary, if you want to install Sphinx version 2.4.4, you should do::

-       $ virtualenv sphinx_1.7.9
-       $ . sphinx_1.7.9/bin/activate
-       (sphinx_1.7.9) $ pip install -r Documentation/sphinx/requirements.txt
+       $ virtualenv sphinx_2.4.4
+       $ . sphinx_2.4.4/bin/activate
+       (sphinx_2.4.4) $ pip install -r Documentation/sphinx/requirements.txt

-After running ``. sphinx_1.7.9/bin/activate``, the prompt will change,
+After running ``. sphinx_2.4.4/bin/activate``, the prompt will change,
 in order to indicate that you're using the new environment. If you
 open a new shell, you need to rerun this command to enter again at
 the virtual environment before building the documentation.
@ -81,7 +77,7 @@ output.
 PDF and LaTeX builds
 --------------------

-Such builds are currently supported only with Sphinx versions 1.4 and higher.
+Such builds are currently supported only with Sphinx versions 2.4 and higher.

 For PDF and LaTeX output, you'll also need ``XeLaTeX`` version 3.14159265.

@ -104,8 +100,8 @@ command line options for your distro::
 	You should run:

 		sudo dnf install -y texlive-luatex85
-		/usr/bin/virtualenv sphinx_1.7.9
-		. sphinx_1.7.9/bin/activate
+		/usr/bin/virtualenv sphinx_2.4.4
+		. sphinx_2.4.4/bin/activate
 		pip install -r Documentation/sphinx/requirements.txt

 	Can't build as 1 mandatory dependency is missing at ./scripts/sphinx-pre-install line 468.
--- a/Documentation/filesystems/autofs.rst
+++ b/Documentation/filesystems/autofs.rst
@ -35,7 +35,7 @@ This document describes only the kernel module and the interactions
 required with any user-space program.  Subsequent text refers to this
 as the "automount daemon" or simply "the daemon".

-"autofs" is a Linux kernel module with provides the "autofs"
+"autofs" is a Linux kernel module which provides the "autofs"
 filesystem type.  Several "autofs" filesystems can be mounted and they
 can each be managed separately, or all managed by the same daemon.

--- a/Documentation/filesystems/cifs/ksmbd.rst
+++ b/Documentation/filesystems/cifs/ksmbd.rst
@ -50,11 +50,11 @@ ksmbd.mountd (user space daemon)
 --------------------------------

 ksmbd.mountd is userspace process to, transfer user account and password that
-are registered using ksmbd.adduser(part of utils for user space). Further it
+are registered using ksmbd.adduser (part of utils for user space). Further it
 allows sharing information parameters that parsed from smb.conf to ksmbd in
 kernel. For the execution part it has a daemon which is continuously running
 and connected to the kernel interface using netlink socket, it waits for the
-requests(dcerpc and share/user info). It handles RPC calls (at a minimum few
+requests (dcerpc and share/user info). It handles RPC calls (at a minimum few
 dozen) that are most important for file server from NetShareEnum and
 NetServerGetInfo. Complete DCE/RPC response is prepared from the user space
 and passed over to the associated kernel thread for the client.
@ -154,11 +154,11 @@ Each layer
 1. Enable all component prints
 	# sudo ksmbd.control -d "all"

-2. Enable one of components(smb, auth, vfs, oplock, ipc, conn, rdma)
+2. Enable one of components (smb, auth, vfs, oplock, ipc, conn, rdma)
 	# sudo ksmbd.control -d "smb"

-3. Show what prints are enable.
-	# cat/sys/class/ksmbd-control/debug
+3. Show what prints are enabled.
+	# cat /sys/class/ksmbd-control/debug
 	  [smb] auth vfs oplock ipc conn [rdma]

 4. Disable prints:
--- a/Documentation/i2c/smbus-protocol.rst
+++ b/Documentation/i2c/smbus-protocol.rst
@ -36,6 +36,8 @@ Key to symbols

 =============== =============================================================
 S               Start condition
+Sr              Repeated start condition, used to switch from write to
+                read mode.
 P               Stop condition
 Rd/Wr (1 bit)   Read/Write bit. Rd equals 1, Wr equals 0.
 A, NA (1 bit)   Acknowledge (ACK) and Not Acknowledge (NACK) bit
@ -100,7 +102,7 @@ Implemented by i2c_smbus_read_byte_data()
 This reads a single byte from a device, from a designated register.
 The register is specified through the Comm byte::

-  S Addr Wr [A] Comm [A] S Addr Rd [A] [Data] NA P
+  S Addr Wr [A] Comm [A] Sr Addr Rd [A] [Data] NA P

 Functionality flag: I2C_FUNC_SMBUS_READ_BYTE_DATA

@ -114,7 +116,7 @@ This operation is very like Read Byte; again, data is read from a
 device, from a designated register that is specified through the Comm
 byte. But this time, the data is a complete word (16 bits)::

-  S Addr Wr [A] Comm [A] S Addr Rd [A] [DataLow] A [DataHigh] NA P
+  S Addr Wr [A] Comm [A] Sr Addr Rd [A] [DataLow] A [DataHigh] NA P

 Functionality flag: I2C_FUNC_SMBUS_READ_WORD_DATA

@ -164,7 +166,7 @@ This command selects a device register (through the Comm byte), sends
 16 bits of data to it, and reads 16 bits of data in return::

  S Addr Wr [A] Comm [A] DataLow [A] DataHigh [A]
-                               S Addr Rd [A] [DataLow] A [DataHigh] NA P
+                              Sr Addr Rd [A] [DataLow] A [DataHigh] NA P

 Functionality flag: I2C_FUNC_SMBUS_PROC_CALL

@ -181,7 +183,7 @@ of data is specified by the device in the Count byte.
 ::

  S Addr Wr [A] Comm [A]
-             S Addr Rd [A] [Count] A [Data] A [Data] A ... A [Data] NA P
+            Sr Addr Rd [A] [Count] A [Data] A [Data] A ... A [Data] NA P

 Functionality flag: I2C_FUNC_SMBUS_READ_BLOCK_DATA

@ -212,7 +214,7 @@ This command selects a device register (through the Comm byte), sends
 1 to 31 bytes of data to it, and reads 1 to 31 bytes of data in return::

  S Addr Wr [A] Comm [A] Count [A] Data [A] ...
-                               S Addr Rd [A] [Count] A [Data] ... A P
+                              Sr Addr Rd [A] [Count] A [Data] ... A P

 Functionality flag: I2C_FUNC_SMBUS_BLOCK_PROC_CALL

@ -300,7 +302,7 @@ This command reads a block of bytes from a device, from a
 designated register that is specified through the Comm byte::

  S Addr Wr [A] Comm [A]
-             S Addr Rd [A] [Data] A [Data] A ... A [Data] NA P
+            Sr Addr Rd [A] [Data] A [Data] A ... A [Data] NA P

 Functionality flag: I2C_FUNC_SMBUS_READ_I2C_BLOCK

--- a/Documentation/networking/ipvs-sysctl.rst
+++ b/Documentation/networking/ipvs-sysctl.rst
@ -37,8 +37,7 @@ conn_reuse_mode - INTEGER

 	0: disable any special handling on port reuse. The new
 	connection will be delivered to the same real server that was
-	servicing the previous connection. This will effectively
-	disable expire_nodest_conn.
+	servicing the previous connection.

 	bit 1: enable rescheduling of new connections when it is safe.
 	That is, whenever expire_nodest_conn and for TCP sockets, when
--- a/Documentation/networking/timestamping.rst
+++ b/Documentation/networking/timestamping.rst
@ -486,8 +486,8 @@ of packets.
 Drivers are free to use a more permissive configuration than the requested
 configuration. It is expected that drivers should only implement directly the
 most generic mode that can be supported. For example if the hardware can
-support HWTSTAMP_FILTER_V2_EVENT, then it should generally always upscale
-HWTSTAMP_FILTER_V2_L2_SYNC_MESSAGE, and so forth, as HWTSTAMP_FILTER_V2_EVENT
+support HWTSTAMP_FILTER_PTP_V2_EVENT, then it should generally always upscale
+HWTSTAMP_FILTER_PTP_V2_L2_SYNC, and so forth, as HWTSTAMP_FILTER_PTP_V2_EVENT
 is more generic (and more useful to applications).

 A driver which supports hardware time stamping shall update the struct
--- a/Documentation/power/energy-model.rst
+++ b/Documentation/power/energy-model.rst
@ -84,6 +84,16 @@ CONFIG_ENERGY_MODEL must be enabled to use the EM framework.
 2.2 Registration of performance domains
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

+Registration of 'advanced' EM
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The 'advanced' EM gets it's name due to the fact that the driver is allowed
+to provide more precised power model. It's not limited to some implemented math
+formula in the framework (like it's in 'simple' EM case). It can better reflect
+the real power measurements performed for each performance state. Thus, this
+registration method should be preferred in case considering EM static power
+(leakage) is important.
+
 Drivers are expected to register performance domains into the EM framework by
 calling the following API::

@ -103,6 +113,18 @@ to: return warning/error, stop working or panic.
 See Section 3. for an example of driver implementing this
 callback, or Section 2.4 for further documentation on this API

+Registration of 'simple' EM
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The 'simple' EM is registered using the framework helper function
+cpufreq_register_em_with_opp(). It implements a power model which is tight to
+math formula::
+
+	Power = C * V^2 * f
+
+The EM which is registered using this method might not reflect correctly the
+physics of a real device, e.g. when static power (leakage) is important.
+

 2.3 Accessing performance domains
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -138,6 +160,10 @@ or in Section 2.4
 3. Example driver
 -----------------

+The CPUFreq framework supports dedicated callback for registering
+the EM for a given CPU(s) 'policy' object: cpufreq_driver::register_em().
+That callback has to be implemented properly for a given driver,
+because the framework would call it at the right time during setup.
 This section provides a simple example of a CPUFreq driver registering a
 performance domain in the Energy Model framework using the (fake) 'foo'
 protocol. The driver implements an est_power() function to be provided to the
@ -167,25 +193,22 @@ EM framework::
  20		return 0;
  21	}
  22
-  23	static int foo_cpufreq_init(struct cpufreq_policy *policy)
+  23	static void foo_cpufreq_register_em(struct cpufreq_policy *policy)
  24	{
  25		struct em_data_callback em_cb = EM_DATA_CB(est_power);
  26		struct device *cpu_dev;
-  27		int nr_opp, ret;
+  27		int nr_opp;
  28
  29		cpu_dev = get_cpu_device(cpumask_first(policy->cpus));
  30
-  31     	/* Do the actual CPUFreq init work ... */
-  32     	ret = do_foo_cpufreq_init(policy);
-  33     	if (ret)
-  34     		return ret;
-  35
-  36     	/* Find the number of OPPs for this policy */
-  37     	nr_opp = foo_get_nr_opp(policy);
+  31     	/* Find the number of OPPs for this policy */
+  32     	nr_opp = foo_get_nr_opp(policy);
+  33
+  34     	/* And register the new performance domain */
+  35     	em_dev_register_perf_domain(cpu_dev, nr_opp, &em_cb, policy->cpus,
+  36					    true);
+  37	}
  38
-  39     	/* And register the new performance domain */
-  40     	em_dev_register_perf_domain(cpu_dev, nr_opp, &em_cb, policy->cpus,
-  41					    true);
-  42
-  43	        return 0;
-  44	}
+  39	static struct cpufreq_driver foo_cpufreq_driver = {
+  40		.register_em = foo_cpufreq_register_em,
+  41	};
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@ -54,7 +54,7 @@ mcelog                 0.6              mcelog --version
 iptables               1.4.2            iptables -V
 openssl & libcrypto    1.0.0            openssl version
 bc                     1.06.95          bc --version
-Sphinx\ [#f1]_	       1.3		sphinx-build --version
+Sphinx\ [#f1]_         1.7              sphinx-build --version
 ====================== ===============  ========================================

 .. [#f1] Sphinx is needed only to build the Kernel documentation
--- a/Documentation/process/submitting-patches.rst
+++ b/Documentation/process/submitting-patches.rst
@ -22,8 +22,8 @@ use it, it will make your life as a kernel developer and in general much
 easier.

 Some subsystems and maintainer trees have additional information about
-their workflow and expectations, see :ref:`Documentation/process/maintainer
-handbooks <maintainer_handbooks_main>`.
+their workflow and expectations, see
+:ref:`Documentation/process/maintainer-handbooks.rst <maintainer_handbooks_main>`.

 Obtain a current source tree
 ----------------------------
--- a/Documentation/trace/ftrace.rst
+++ b/Documentation/trace/ftrace.rst
@ -2442,11 +2442,10 @@ Or this simple script!
  #!/bin/bash

  tracefs=`sed -ne 's/^tracefs \(.*\) tracefs.*/\1/p' /proc/mounts`
-  echo nop > $tracefs/tracing/current_tracer
-  echo 0 > $tracefs/tracing/tracing_on
-  echo $$ > $tracefs/tracing/set_ftrace_pid
-  echo function > $tracefs/tracing/current_tracer
-  echo 1 > $tracefs/tracing/tracing_on
+  echo 0 > $tracefs/tracing_on
+  echo $$ > $tracefs/set_ftrace_pid
+  echo function > $tracefs/current_tracer
+  echo 1 > $tracefs/tracing_on
  exec "$@"


--- a/Documentation/translations/it_IT/doc-guide/sphinx.rst
+++ b/Documentation/translations/it_IT/doc-guide/sphinx.rst
@ -35,7 +35,7 @@ Installazione Sphinx
 ====================

 I marcatori ReST utilizzati nei file in Documentation/ sono pensati per essere
-processati da ``Sphinx`` nella versione 1.3 o superiore.
+processati da ``Sphinx`` nella versione 1.7 o superiore.

 Esiste uno script che verifica i requisiti Sphinx. Per ulteriori dettagli
 consultate :ref:`it_sphinx-pre-install`.
@ -53,11 +53,6 @@ pacchettizzato dalla vostra distribuzione.

 .. note::

-   #) Le versioni di Sphinx inferiori alla 1.5 non funzionano bene
-      con il pacchetto Python docutils versione 0.13.1 o superiore.
-      Se volete usare queste versioni, allora dovere eseguire
-      ``pip install 'docutils==0.12'``.
-
   #) Viene raccomandato l'uso del tema RTD per la documentazione in HTML.
      A seconda della versione di Sphinx, potrebbe essere necessaria
      l'installazione tramite il comando ``pip install sphinx_rtd_theme``.
@ -67,13 +62,13 @@ pacchettizzato dalla vostra distribuzione.
      utilizzando LaTeX. Per una corretta interpretazione, è necessario aver
      installato texlive con i pacchetti amdfonts e amsmath.

-Riassumendo, se volete installare la versione 1.7.9 di Sphinx dovete eseguire::
+Riassumendo, se volete installare la versione 2.4.4 di Sphinx dovete eseguire::

-       $ virtualenv sphinx_1.7.9
-       $ . sphinx_1.7.9/bin/activate
-       (sphinx_1.7.9) $ pip install -r Documentation/sphinx/requirements.txt
+       $ virtualenv sphinx_2.4.4
+       $ . sphinx_2.4.4/bin/activate
+       (sphinx_2.4.4) $ pip install -r Documentation/sphinx/requirements.txt

-Dopo aver eseguito ``. sphinx_1.7.9/bin/activate``, il prompt cambierà per
+Dopo aver eseguito ``. sphinx_2.4.4/bin/activate``, il prompt cambierà per
 indicare che state usando il nuovo ambiente. Se aprite un nuova sessione,
 prima di generare la documentazione, dovrete rieseguire questo comando per
 rientrare nell'ambiente virtuale.
@ -94,7 +89,7 @@ Generazione in PDF e LaTeX
 --------------------------

 Al momento, la generazione di questi documenti è supportata solo dalle
-versioni di Sphinx superiori alla 1.4.
+versioni di Sphinx superiori alla 2.4.

 Per la generazione di PDF e LaTeX, avrete bisogno anche del pacchetto
 ``XeLaTeX`` nella versione 3.14159265
@ -119,8 +114,8 @@ l'installazione::
 	You should run:

 		sudo dnf install -y texlive-luatex85
-		/usr/bin/virtualenv sphinx_1.7.9
-		. sphinx_1.7.9/bin/activate
+		/usr/bin/virtualenv sphinx_2.4.4
+		. sphinx_2.4.4/bin/activate
 		pip install -r Documentation/sphinx/requirements.txt

 	Can't build as 1 mandatory dependency is missing at ./scripts/sphinx-pre-install line 468.
--- a/Documentation/translations/it_IT/process/changes.rst
+++ b/Documentation/translations/it_IT/process/changes.rst
@ -57,7 +57,7 @@ mcelog                 0.6                mcelog --version
 iptables               1.4.2              iptables -V
 openssl & libcrypto    1.0.0              openssl version
 bc                     1.06.95            bc --version
-Sphinx\ [#f1]_         1.3                sphinx-build --version
+Sphinx\ [#f1]_         1.7                sphinx-build --version
 ====================== =================  ========================================

 .. [#f1] Sphinx è necessario solo per produrre la documentazione del Kernel
--- a/Documentation/translations/zh_CN/doc-guide/sphinx.rst
+++ b/Documentation/translations/zh_CN/doc-guide/sphinx.rst
@ -26,7 +26,7 @@ reStructuredText文件可能包含包含来自源文件的结构化文档注释
 安装Sphinx
 ==========

-Documentation/ 下的ReST文件现在使用sphinx1.3或更高版本构建。
+Documentation/ 下的ReST文件现在使用sphinx1.7或更高版本构建。

 这有一个脚本可以检查Sphinx的依赖项。更多详细信息见
 :ref:`sphinx-pre-install_zh` 。
@ -40,22 +40,19 @@ Documentation/ 下的ReST文件现在使用sphinx1.3或更高版本构建。

 .. note::

-   #) 低于1.5版本的Sphinx无法与Python的0.13.1或更高版本docutils一起正常工作。
-      如果您想使用这些版本，那么应该运行 ``pip install 'docutils==0.12'`` 。
-
   #) html输出建议使用RTD主题。根据Sphinx版本的不同，它应该用
      ``pip install sphinx_rtd_theme`` 单独安装。

   #) 一些ReST页面包含数学表达式。由于Sphinx的工作方式，这些表达式是使用 LaTeX
      编写的。它需要安装amsfonts和amsmath宏包，以便显示。

-总之，如您要安装Sphinx 1.7.9版本，应执行::
+总之，如您要安装Sphinx 2.4.4版本，应执行::

-       $ virtualenv sphinx_1.7.9
-       $ . sphinx_1.7.9/bin/activate
-       (sphinx_1.7.9) $ pip install -r Documentation/sphinx/requirements.txt
+       $ virtualenv sphinx_2.4.4
+       $ . sphinx_2.4.4/bin/activate
+       (sphinx_2.4.4) $ pip install -r Documentation/sphinx/requirements.txt

-在运行 ``. sphinx_1.7.9/bin/activate`` 之后，提示符将变化，以指示您正在使用新
+在运行 ``. sphinx_2.4.4/bin/activate`` 之后，提示符将变化，以指示您正在使用新
 环境。如果您打开了一个新的shell，那么在构建文档之前，您需要重新运行此命令以再
 次进入虚拟环境中。

@ -71,7 +68,7 @@ Documentation/ 下的ReST文件现在使用sphinx1.3或更高版本构建。
 PDF和LaTeX构建
 --------------

-目前只有Sphinx 1.4及更高版本才支持这种构建。
+目前只有Sphinx 2.4及更高版本才支持这种构建。

 对于PDF和LaTeX输出，还需要 ``XeLaTeX`` 3.14159265版本。（译注：此版本号真实
 存在）
@ -93,8 +90,8 @@ PDF和LaTeX构建
 	You should run:

 		sudo dnf install -y texlive-luatex85
-		/usr/bin/virtualenv sphinx_1.7.9
-		. sphinx_1.7.9/bin/activate
+		/usr/bin/virtualenv sphinx_2.4.4
+		. sphinx_2.4.4/bin/activate
 		pip install -r Documentation/sphinx/requirements.txt

 	Can't build as 1 mandatory dependency is missing at ./scripts/sphinx-pre-install line 468.
--- a/Documentation/translations/zh_CN/process/management-style.rst
+++ b/Documentation/translations/zh_CN/process/management-style.rst
@ -36,14 +36,14 @@ Linux内核管理风格
 每个人都认为管理者做决定，而且决策很重要。决定越大越痛苦，管理者就必须越高级。
 这很明显，但事实并非如此。

-游戏的名字是 **避免** 做出决定。尤其是，如果有人告诉你“选择（a）或（b），
+最重要的是 **避免** 做出决定。尤其是，如果有人告诉你“选择（a）或（b），
 我们真的需要你来做决定”，你就是陷入麻烦的管理者。你管理的人比你更了解细节，
 所以如果他们来找你做技术决策，你完蛋了。你显然没有能力为他们做这个决定。

 （推论：如果你管理的人不比你更了解细节，你也会被搞砸，尽管原因完全不同。
 也就是说，你的工作是错的，他们应该管理你的才智）

-所以游戏的名字是 **避免** 做出决定，至少是那些大而痛苦的决定。做一些小的
+所以最重要的是 **避免** 做出决定，至少是那些大而痛苦的决定。做一些小的
 和非结果性的决定是很好的，并且使您看起来好像知道自己在做什么，所以内核管理者
 需要做的是将那些大的和痛苦的决定变成那些没有人真正关心的小事情。

--- a/30
+++ b/30
@ -2263,6 +2263,15 @@ L:	linux-iio@vger.kernel.org
 S:	Maintained
 F:	drivers/counter/microchip-tcb-capture.c

+ARM/MILBEAUT ARCHITECTURE
+M:	Taichi Sugaya <sugaya.taichi@socionext.com>
+M:	Takao Orito <orito.takao@socionext.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm/boot/dts/milbeaut*
+F:	arch/arm/mach-milbeaut/
+N:	milbeaut
+
 ARM/MIOA701 MACHINE SUPPORT
 M:	Robert Jarzmik <robert.jarzmik@free.fr>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@ -2729,10 +2738,11 @@ S:	Maintained
 F:	drivers/memory/*emif*

 ARM/TEXAS INSTRUMENT KEYSTONE ARCHITECTURE
+M:	Nishanth Menon <nm@ti.com>
 M:	Santosh Shilimkar <ssantosh@kernel.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
 F:	arch/arm/boot/dts/keystone-*
 F:	arch/arm/mach-keystone/

@ -3570,13 +3580,14 @@ L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/ethernet/broadcom/b44.*

-BROADCOM B53 ETHERNET SWITCH DRIVER
+BROADCOM B53/SF2 ETHERNET SWITCH DRIVER
 M:	Florian Fainelli <f.fainelli@gmail.com>
 L:	netdev@vger.kernel.org
 L:	openwrt-devel@lists.openwrt.org (subscribers-only)
 S:	Supported
 F:	Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml
 F:	drivers/net/dsa/b53/*
+F:	drivers/net/dsa/bcm_sf2*
 F:	include/linux/dsa/brcm.h
 F:	include/linux/platform_data/b53.h

@ -3733,7 +3744,7 @@ F:	drivers/scsi/bnx2i/
 BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
 M:	Ariel Elior <aelior@marvell.com>
 M:	Sudarsana Kalluru <skalluru@marvell.com>
-M:	GR-everest-linux-l2@marvell.com
+M:	Manish Chopra <manishc@marvell.com>
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/ethernet/broadcom/bnx2x/
@ -10445,7 +10456,7 @@ F:	arch/riscv/include/uapi/asm/kvm*
 F:	arch/riscv/kvm/

 KERNEL VIRTUAL MACHINE for s390 (KVM/s390)
-M:	Christian Borntraeger <borntraeger@de.ibm.com>
+M:	Christian Borntraeger <borntraeger@linux.ibm.com>
 M:	Janosch Frank <frankja@linux.ibm.com>
 R:	David Hildenbrand <david@redhat.com>
 R:	Claudio Imbrenda <imbrenda@linux.ibm.com>
@ -15593,7 +15604,7 @@ F:	drivers/scsi/qedi/

 QLOGIC QL4xxx ETHERNET DRIVER
 M:	Ariel Elior <aelior@marvell.com>
-M:	GR-everest-linux-l2@marvell.com
+M:	Manish Chopra <manishc@marvell.com>
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/ethernet/qlogic/qed/
@ -16573,7 +16584,7 @@ F:	drivers/video/fbdev/savage/
 S390
 M:	Heiko Carstens <hca@linux.ibm.com>
 M:	Vasily Gorbik <gor@linux.ibm.com>
-M:	Christian Borntraeger <borntraeger@de.ibm.com>
+M:	Christian Borntraeger <borntraeger@linux.ibm.com>
 R:	Alexander Gordeev <agordeev@linux.ibm.com>
 L:	linux-s390@vger.kernel.org
 S:	Supported
@ -18483,6 +18494,7 @@ F:	include/uapi/linux/pkt_sched.h
 F:	include/uapi/linux/tc_act/
 F:	include/uapi/linux/tc_ematch/
 F:	net/sched/
+F:	tools/testing/selftests/tc-testing

 TC90522 MEDIA DRIVER
 M:	Akihiro Tsukada <tskd08@gmail.com>
@ -19031,11 +19043,12 @@ F:	drivers/mmc/host/tifm_sd.c
 F:	include/linux/tifm.h

 TI KEYSTONE MULTICORE NAVIGATOR DRIVERS
+M:	Nishanth Menon <nm@ti.com>
 M:	Santosh Shilimkar <ssantosh@kernel.org>
 L:	linux-kernel@vger.kernel.org
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
 F:	drivers/soc/ti/*

 TI LM49xxx FAMILY ASoC CODEC DRIVERS
@ -20317,7 +20330,8 @@ F:	arch/x86/include/asm/vmware.h
 F:	arch/x86/kernel/cpu/vmware.c

 VMWARE PVRDMA DRIVER
-M:	Adit Ranadive <aditr@vmware.com>
+M:	Bryan Tan <bryantan@vmware.com>
+M:	Vishnu Dasa <vdasa@vmware.com>
 M:	VMware PV-Drivers <pv-drivers@vmware.com>
 L:	linux-rdma@vger.kernel.org
 S:	Maintained
--- a/4
+++ b/4
@ -2,8 +2,8 @@
 VERSION = 5
 PATCHLEVEL = 16
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
-NAME = Trick or Treat
+EXTRAVERSION = -rc3
+NAME = Gobble Gobble

 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"
--- a/arch/Kconfig
+++ b/arch/Kconfig
@ -991,6 +991,16 @@ config HAVE_ARCH_COMPAT_MMAP_BASES
 	  and vice-versa 32-bit applications to call 64-bit mmap().
 	  Required for applications doing different bitness syscalls.

+config PAGE_SIZE_LESS_THAN_64KB
+	def_bool y
+	depends on !ARM64_64K_PAGES
+	depends on !IA64_PAGE_SIZE_64KB
+	depends on !PAGE_SIZE_64KB
+	depends on !PARISC_PAGE_SIZE_64KB
+	depends on !PPC_64K_PAGES
+	depends on !PPC_256K_PAGES
+	depends on !PAGE_SIZE_256KB
+
 # This allows to use a set of generic functions to determine mmap base
 # address by giving priority to top-down scheme only if the process
 # is not in legacy mode (compat task, unlimited stack size or
--- a/arch/alpha/kernel/syscalls/syscall.tbl
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@ -488,3 +488,4 @@
 556	common	landlock_restrict_self		sys_landlock_restrict_self
 # 557 reserved for memfd_secret
 558	common	process_mrelease		sys_process_mrelease
+559	common  futex_waitv                     sys_futex_waitv
--- a/arch/arc/include/asm/cacheflush.h
+++ b/arch/arc/include/asm/cacheflush.h
@ -36,7 +36,6 @@ void __flush_dcache_page(phys_addr_t paddr, unsigned long vaddr);
 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1

 void flush_dcache_page(struct page *page);
-void flush_dcache_folio(struct folio *folio);

 void dma_cache_wback_inv(phys_addr_t start, unsigned long sz);
 void dma_cache_inv(phys_addr_t start, unsigned long sz);
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@ -1463,6 +1463,7 @@ config HIGHMEM
 	bool "High Memory Support"
 	depends on MMU
 	select KMAP_LOCAL
+	select KMAP_LOCAL_NON_LINEAR_PTE_ARRAY
 	help
 	  The address space of ARM processors is only 4 Gigabytes large
 	  and it has to accommodate user address space, kernel address
--- a/arch/arm/boot/dts/bcm2711.dtsi
+++ b/arch/arm/boot/dts/bcm2711.dtsi
@ -506,11 +506,17 @@ pcie0: pcie@7d500000 {
 			#address-cells = <3>;
 			#interrupt-cells = <1>;
 			#size-cells = <2>;
-			interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
+			interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "pcie", "msi";
 			interrupt-map-mask = <0x0 0x0 0x0 0x7>;
 			interrupt-map = <0 0 0 1 &gicv2 GIC_SPI 143
+							IRQ_TYPE_LEVEL_HIGH>,
+					<0 0 0 2 &gicv2 GIC_SPI 144
+							IRQ_TYPE_LEVEL_HIGH>,
+					<0 0 0 3 &gicv2 GIC_SPI 145
+							IRQ_TYPE_LEVEL_HIGH>,
+					<0 0 0 4 &gicv2 GIC_SPI 146
 							IRQ_TYPE_LEVEL_HIGH>;
 			msi-controller;
 			msi-parent = <&pcie0>;
--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@ -242,6 +242,8 @@ chipcommon: chipcommon@0 {

 			gpio-controller;
 			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
 		};

 		pcie0: pcie@12000 {
@ -408,7 +410,7 @@ uart2: serial@18008000 {
 	i2c0: i2c@18009000 {
 		compatible = "brcm,iproc-i2c";
 		reg = <0x18009000 0x50>;
-		interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+		interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
 		#address-cells = <1>;
 		#size-cells = <0>;
 		clock-frequency = <100000>;
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@ -290,7 +290,6 @@ extern void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr
 */
 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
 extern void flush_dcache_page(struct page *);
-void flush_dcache_folio(struct folio *folio);

 #define ARCH_IMPLEMENTS_FLUSH_KERNEL_VMAP_RANGE 1
 static inline void flush_kernel_vmap_range(void *addr, int size)
--- a/arch/arm/mach-socfpga/core.h
+++ b/arch/arm/mach-socfpga/core.h
@ -33,7 +33,7 @@ extern void __iomem *sdr_ctl_base_addr;
 u32 socfpga_sdram_self_refresh(u32 sdr_base);
 extern unsigned int socfpga_sdram_self_refresh_sz;

-extern char secondary_trampoline, secondary_trampoline_end;
+extern char secondary_trampoline[], secondary_trampoline_end[];

 extern unsigned long socfpga_cpu1start_addr;

--- a/arch/arm/mach-socfpga/platsmp.c
+++ b/arch/arm/mach-socfpga/platsmp.c
@ -20,14 +20,14 @@

 static int socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
-	int trampoline_size = &secondary_trampoline_end - &secondary_trampoline;
+	int trampoline_size = secondary_trampoline_end - secondary_trampoline;

 	if (socfpga_cpu1start_addr) {
 		/* This will put CPU #1 into reset. */
 		writel(RSTMGR_MPUMODRST_CPU1,
 		       rst_manager_base_addr + SOCFPGA_RSTMGR_MODMPURST);

-		memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
+		memcpy(phys_to_virt(0), secondary_trampoline, trampoline_size);

 		writel(__pa_symbol(secondary_startup),
 		       sys_manager_base_addr + (socfpga_cpu1start_addr & 0x000000ff));
@ -45,12 +45,12 @@ static int socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)

 static int socfpga_a10_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
-	int trampoline_size = &secondary_trampoline_end - &secondary_trampoline;
+	int trampoline_size = secondary_trampoline_end - secondary_trampoline;

 	if (socfpga_cpu1start_addr) {
 		writel(RSTMGR_MPUMODRST_CPU1, rst_manager_base_addr +
 		       SOCFPGA_A10_RSTMGR_MODMPURST);
-		memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
+		memcpy(phys_to_virt(0), secondary_trampoline, trampoline_size);

 		writel(__pa_symbol(secondary_startup),
 		       sys_manager_base_addr + (socfpga_cpu1start_addr & 0x00000fff));
--- a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
@ -296,8 +296,7 @@ ufs_0: ufs0@17e00000 {
 			pinctrl-0 = <&ufs_rst_n &ufs_refclk_out>;
 			phys = <&ufs_0_phy>;
 			phy-names = "ufs-phy";
-			samsung,sysreg = <&syscon_fsys2>;
-			samsung,ufs-shareability-reg-offset = <0x710>;
+			samsung,sysreg = <&syscon_fsys2 0x710>;
 			status = "disabled";
 		};
 	};
--- a/arch/arm64/include/asm/ftrace.h
+++ b/arch/arm64/include/asm/ftrace.h
@ -12,6 +12,17 @@

 #define HAVE_FUNCTION_GRAPH_FP_TEST

+/*
+ * HAVE_FUNCTION_GRAPH_RET_ADDR_PTR means that the architecture can provide a
+ * "return address pointer" which can be used to uniquely identify a return
+ * address which has been overwritten.
+ *
+ * On arm64 we use the address of the caller's frame record, which remains the
+ * same for the lifetime of the instrumented function, unlike the return
+ * address in the LR.
+ */
+#define HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
+
 #ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
 #define ARCH_SUPPORTS_FTRACE_OPS 1
 #else
--- a/arch/arm64/include/asm/pgalloc.h
+++ b/arch/arm64/include/asm/pgalloc.h
@ -76,7 +76,7 @@ static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t ptep,
 static inline void
 pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep)
 {
-	VM_BUG_ON(mm != &init_mm);
+	VM_BUG_ON(mm && mm != &init_mm);
 	__pmd_populate(pmdp, __pa(ptep), PMD_TYPE_TABLE | PMD_TABLE_UXN);
 }

--- a/arch/arm64/include/asm/stacktrace.h
+++ b/arch/arm64/include/asm/stacktrace.h
@ -47,9 +47,6 @@ struct stack_info {
 * @prev_type:   The type of stack this frame record was on, or a synthetic
 *               value of STACK_TYPE_UNKNOWN. This is used to detect a
 *               transition from one stack to another.
- *
- * @graph:       When FUNCTION_GRAPH_TRACER is selected, holds the index of a
- *               replacement lr value in the ftrace graph stack.
 */
 struct stackframe {
 	unsigned long fp;
@ -57,9 +54,6 @@ struct stackframe {
 	DECLARE_BITMAP(stacks_done, __NR_STACK_TYPES);
 	unsigned long prev_fp;
 	enum stack_type prev_type;
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-	int graph;
-#endif
 #ifdef CONFIG_KRETPROBES
 	struct llist_node *kr_cur;
 #endif
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@ -281,12 +281,22 @@ do {									\
 	(x) = (__force __typeof__(*(ptr)))__gu_val;			\
 } while (0)

+/*
+ * We must not call into the scheduler between uaccess_ttbr0_enable() and
+ * uaccess_ttbr0_disable(). As `x` and `ptr` could contain blocking functions,
+ * we must evaluate these outside of the critical section.
+ */
 #define __raw_get_user(x, ptr, err)					\
 do {									\
+	__typeof__(*(ptr)) __user *__rgu_ptr = (ptr);			\
+	__typeof__(x) __rgu_val;					\
 	__chk_user_ptr(ptr);						\
+									\
 	uaccess_ttbr0_enable();						\
-	__raw_get_mem("ldtr", x, ptr, err);				\
+	__raw_get_mem("ldtr", __rgu_val, __rgu_ptr, err);		\
 	uaccess_ttbr0_disable();					\
+									\
+	(x) = __rgu_val;						\
 } while (0)

 #define __get_user_error(x, ptr, err)					\
@ -310,14 +320,22 @@ do {									\

 #define get_user	__get_user

+/*
+ * We must not call into the scheduler between __uaccess_enable_tco_async() and
+ * __uaccess_disable_tco_async(). As `dst` and `src` may contain blocking
+ * functions, we must evaluate these outside of the critical section.
+ */
 #define __get_kernel_nofault(dst, src, type, err_label)			\
 do {									\
+	__typeof__(dst) __gkn_dst = (dst);				\
+	__typeof__(src) __gkn_src = (src);				\
 	int __gkn_err = 0;						\
 									\
 	__uaccess_enable_tco_async();					\
-	__raw_get_mem("ldr", *((type *)(dst)),				\
-		      (__force type *)(src), __gkn_err);		\
+	__raw_get_mem("ldr", *((type *)(__gkn_dst)),			\
+		      (__force type *)(__gkn_src), __gkn_err);		\
 	__uaccess_disable_tco_async();					\
+									\
 	if (unlikely(__gkn_err))					\
 		goto err_label;						\
 } while (0)
@ -351,11 +369,19 @@ do {									\
 	}								\
 } while (0)

+/*
+ * We must not call into the scheduler between uaccess_ttbr0_enable() and
+ * uaccess_ttbr0_disable(). As `x` and `ptr` could contain blocking functions,
+ * we must evaluate these outside of the critical section.
+ */
 #define __raw_put_user(x, ptr, err)					\
 do {									\
-	__chk_user_ptr(ptr);						\
+	__typeof__(*(ptr)) __user *__rpu_ptr = (ptr);			\
+	__typeof__(*(ptr)) __rpu_val = (x);				\
+	__chk_user_ptr(__rpu_ptr);					\
+									\
 	uaccess_ttbr0_enable();						\
-	__raw_put_mem("sttr", x, ptr, err);				\
+	__raw_put_mem("sttr", __rpu_val, __rpu_ptr, err);		\
 	uaccess_ttbr0_disable();					\
 } while (0)

@ -380,14 +406,22 @@ do {									\

 #define put_user	__put_user

+/*
+ * We must not call into the scheduler between __uaccess_enable_tco_async() and
+ * __uaccess_disable_tco_async(). As `dst` and `src` may contain blocking
+ * functions, we must evaluate these outside of the critical section.
+ */
 #define __put_kernel_nofault(dst, src, type, err_label)			\
 do {									\
+	__typeof__(dst) __pkn_dst = (dst);				\
+	__typeof__(src) __pkn_src = (src);				\
 	int __pkn_err = 0;						\
 									\
 	__uaccess_enable_tco_async();					\
-	__raw_put_mem("str", *((type *)(src)),				\
-		      (__force type *)(dst), __pkn_err);		\
+	__raw_put_mem("str", *((type *)(__pkn_src)),			\
+		      (__force type *)(__pkn_dst), __pkn_err);		\
 	__uaccess_disable_tco_async();					\
+									\
 	if (unlikely(__pkn_err))					\
 		goto err_label;						\
 } while(0)
--- a/arch/arm64/kernel/ftrace.c
+++ b/arch/arm64/kernel/ftrace.c
@ -244,8 +244,6 @@ void arch_ftrace_update_code(int command)
 * on the way back to parent. For this purpose, this function is called
 * in _mcount() or ftrace_caller() to replace return address (*parent) on
 * the call stack to return_to_handler.
- *
- * Note that @frame_pointer is used only for sanity check later.
 */
 void prepare_ftrace_return(unsigned long self_addr, unsigned long *parent,
 			   unsigned long frame_pointer)
@ -263,8 +261,10 @@ void prepare_ftrace_return(unsigned long self_addr, unsigned long *parent,
 	 */
 	old = *parent;

-	if (!function_graph_enter(old, self_addr, frame_pointer, NULL))
+	if (!function_graph_enter(old, self_addr, frame_pointer,
+	    (void *)frame_pointer)) {
 		*parent = return_hooker;
+	}
 }

 #ifdef CONFIG_DYNAMIC_FTRACE
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@ -38,9 +38,6 @@ void start_backtrace(struct stackframe *frame, unsigned long fp,
 {
 	frame->fp = fp;
 	frame->pc = pc;
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-	frame->graph = 0;
-#endif
 #ifdef CONFIG_KRETPROBES
 	frame->kr_cur = NULL;
 #endif
@ -116,20 +113,23 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame)
 	frame->prev_fp = fp;
 	frame->prev_type = info.type;

+	frame->pc = ptrauth_strip_insn_pac(frame->pc);
+
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 	if (tsk->ret_stack &&
-		(ptrauth_strip_insn_pac(frame->pc) == (unsigned long)return_to_handler)) {
-		struct ftrace_ret_stack *ret_stack;
+		(frame->pc == (unsigned long)return_to_handler)) {
+		unsigned long orig_pc;
 		/*
 		 * This is a case where function graph tracer has
 		 * modified a return address (LR) in a stack frame
 		 * to hook a function return.
 		 * So replace it to an original value.
 		 */
-		ret_stack = ftrace_graph_get_ret_stack(tsk, frame->graph++);
-		if (WARN_ON_ONCE(!ret_stack))
+		orig_pc = ftrace_graph_ret_addr(tsk, NULL, frame->pc,
+						(void *)frame->fp);
+		if (WARN_ON_ONCE(frame->pc == orig_pc))
 			return -EINVAL;
-		frame->pc = ret_stack->ret;
+		frame->pc = orig_pc;
 	}
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 #ifdef CONFIG_KRETPROBES
@ -137,8 +137,6 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame)
 		frame->pc = kretprobe_find_ret_addr(tsk, (void *)frame->fp, &frame->kr_cur);
 #endif

-	frame->pc = ptrauth_strip_insn_pac(frame->pc);
-
 	return 0;
 }
 NOKPROBE_SYMBOL(unwind_frame);
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@ -223,7 +223,14 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 		r = 1;
 		break;
 	case KVM_CAP_NR_VCPUS:
-		r = num_online_cpus();
+		/*
+		 * ARM64 treats KVM_CAP_NR_CPUS differently from all other
+		 * architectures, as it does not always bound it to
+		 * KVM_CAP_MAX_VCPUS. It should not matter much because
+		 * this is just an advisory value.
+		 */
+		r = min_t(unsigned int, num_online_cpus(),
+			  kvm_arm_default_max_vcpus());
 		break;
 	case KVM_CAP_MAX_VCPUS:
 	case KVM_CAP_MAX_VCPU_ID:
--- a/arch/hexagon/include/asm/timer-regs.h
+++ b/arch/hexagon/include/asm/timer-regs.h
@ -1,26 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Timer support for Hexagon
- *
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
- */
-
-#ifndef _ASM_TIMER_REGS_H
-#define _ASM_TIMER_REGS_H
-
-/*  This stuff should go into a platform specific file  */
-#define TCX0_CLK_RATE		19200
-#define TIMER_ENABLE		0
-#define TIMER_CLR_ON_MATCH	1
-
-/*
- * 8x50 HDD Specs 5-8.  Simulator co-sim not fixed until
- * release 1.1, and then it's "adjustable" and probably not defaulted.
- */
-#define RTOS_TIMER_INT		3
-#ifdef CONFIG_HEXAGON_COMET
-#define RTOS_TIMER_REGS_ADDR	0xAB000000UL
-#endif
-#define SLEEP_CLK_RATE		32000
-
-#endif
--- a/arch/hexagon/include/asm/timex.h
+++ b/arch/hexagon/include/asm/timex.h
@ -7,11 +7,10 @@
 #define _ASM_TIMEX_H

 #include <asm-generic/timex.h>
-#include <asm/timer-regs.h>
 #include <asm/hexagon_vm.h>

 /* Using TCX0 as our clock.  CLOCK_TICK_RATE scheduled to be removed. */
-#define CLOCK_TICK_RATE              TCX0_CLK_RATE
+#define CLOCK_TICK_RATE              19200

 #define ARCH_HAS_READ_CURRENT_TIMER

--- a/arch/hexagon/kernel/.gitignore
+++ b/arch/hexagon/kernel/.gitignore
@ -0,0 +1 @@
+vmlinux.lds
--- a/arch/hexagon/kernel/time.c
+++ b/arch/hexagon/kernel/time.c
@ -17,9 +17,10 @@
 #include <linux/of_irq.h>
 #include <linux/module.h>

-#include <asm/timer-regs.h>
 #include <asm/hexagon_vm.h>

+#define TIMER_ENABLE		BIT(0)
+
 /*
 * For the clocksource we need:
 *	pcycle frequency (600MHz)
@ -33,6 +34,13 @@ cycles_t	pcycle_freq_mhz;
 cycles_t	thread_freq_mhz;
 cycles_t	sleep_clk_freq;

+/*
+ * 8x50 HDD Specs 5-8.  Simulator co-sim not fixed until
+ * release 1.1, and then it's "adjustable" and probably not defaulted.
+ */
+#define RTOS_TIMER_INT		3
+#define RTOS_TIMER_REGS_ADDR	0xAB000000UL
+
 static struct resource rtos_timer_resources[] = {
 	{
 		.start	= RTOS_TIMER_REGS_ADDR,
@ -80,7 +88,7 @@ static int set_next_event(unsigned long delta, struct clock_event_device *evt)
 	iowrite32(0, &rtos_timer->clear);

 	iowrite32(delta, &rtos_timer->match);
-	iowrite32(1 << TIMER_ENABLE, &rtos_timer->enable);
+	iowrite32(TIMER_ENABLE, &rtos_timer->enable);
 	return 0;
 }

--- a/arch/hexagon/lib/io.c
+++ b/arch/hexagon/lib/io.c
@ -27,6 +27,7 @@ void __raw_readsw(const void __iomem *addr, void *data, int len)
 		*dst++ = *src;

 }
+EXPORT_SYMBOL(__raw_readsw);

 /*
 * __raw_writesw - read words a short at a time
@ -47,6 +48,7 @@ void __raw_writesw(void __iomem *addr, const void *data, int len)


 }
+EXPORT_SYMBOL(__raw_writesw);

 /*  Pretty sure len is pre-adjusted for the length of the access already */
 void __raw_readsl(const void __iomem *addr, void *data, int len)
@ -62,6 +64,7 @@ void __raw_readsl(const void __iomem *addr, void *data, int len)


 }
+EXPORT_SYMBOL(__raw_readsl);

 void __raw_writesl(void __iomem *addr, const void *data, int len)
 {
@ -76,3 +79,4 @@ void __raw_writesl(void __iomem *addr, const void *data, int len)


 }
+EXPORT_SYMBOL(__raw_writesl);
--- a/arch/ia64/kernel/syscalls/syscall.tbl
+++ b/arch/ia64/kernel/syscalls/syscall.tbl
@ -369,3 +369,4 @@
 446	common	landlock_restrict_self		sys_landlock_restrict_self
 # 447 reserved for memfd_secret
 448	common	process_mrelease		sys_process_mrelease
+449	common  futex_waitv                     sys_futex_waitv
--- a/arch/m68k/include/asm/cacheflush_mm.h
+++ b/arch/m68k/include/asm/cacheflush_mm.h
@ -250,7 +250,6 @@ static inline void __flush_page_to_ram(void *vaddr)

 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
 #define flush_dcache_page(page)		__flush_page_to_ram(page_address(page))
-void flush_dcache_folio(struct folio *folio);
 #define flush_dcache_mmap_lock(mapping)		do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)	do { } while (0)
 #define flush_icache_page(vma, page)	__flush_page_to_ram(page_address(page))
--- a/arch/m68k/kernel/syscalls/syscall.tbl
+++ b/arch/m68k/kernel/syscalls/syscall.tbl
@ -448,3 +448,4 @@
 446	common	landlock_restrict_self		sys_landlock_restrict_self
 # 447 reserved for memfd_secret
 448	common	process_mrelease		sys_process_mrelease
+449	common  futex_waitv                     sys_futex_waitv
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@ -1145,7 +1145,7 @@ asmlinkage void set_esp0(unsigned long ssp)
 */
 asmlinkage void fpsp040_die(void)
 {
-	force_fatal_sig(SIGSEGV);
+	force_exit_sig(SIGSEGV);
 }

 #ifdef CONFIG_M68KFPU_EMU
--- a/arch/microblaze/kernel/syscalls/syscall.tbl
+++ b/arch/microblaze/kernel/syscalls/syscall.tbl
@ -454,3 +454,4 @@
 446	common	landlock_restrict_self		sys_landlock_restrict_self
 # 447 reserved for memfd_secret
 448	common	process_mrelease		sys_process_mrelease
+449	common  futex_waitv                     sys_futex_waitv
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@ -3097,7 +3097,7 @@ config STACKTRACE_SUPPORT
 config PGTABLE_LEVELS
 	int
 	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
-	default 3 if 64BIT && !PAGE_SIZE_64KB
+	default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
 	default 2

 config MIPS_AUTO_PFN_OFFSET
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@ -381,6 +381,12 @@ void clk_disable(struct clk *clk)

 EXPORT_SYMBOL(clk_disable);

+struct clk *clk_get_parent(struct clk *clk)
+{
+	return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
 unsigned long clk_get_rate(struct clk *clk)
 {
 	if (!clk)
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@ -52,7 +52,7 @@ endif

 vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o

-vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o
+vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o $(obj)/ashldi3.o

 targets := $(notdir $(vmlinuzobjs-y))

--- a/arch/mips/generic/yamon-dt.c
+++ b/arch/mips/generic/yamon-dt.c
@ -75,7 +75,7 @@ static unsigned int __init gen_fdt_mem_array(
 __init int yamon_dt_append_memory(void *fdt,
 				  const struct yamon_mem_region *regions)
 {
-	unsigned long phys_memsize, memsize;
+	unsigned long phys_memsize = 0, memsize;
 	__be32 mem_array[2 * MAX_MEM_ARRAY_ENTRIES];
 	unsigned int mem_entries;
 	int i, err, mem_off;
--- a/arch/mips/include/asm/cacheflush.h
+++ b/arch/mips/include/asm/cacheflush.h
@ -61,8 +61,6 @@ static inline void flush_dcache_page(struct page *page)
 		SetPageDcacheDirty(page);
 }

-void flush_dcache_folio(struct folio *folio);
-
 #define flush_dcache_mmap_lock(mapping)		do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)	do { } while (0)

--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@ -1734,8 +1734,6 @@ static inline void decode_cpucfg(struct cpuinfo_mips *c)

 static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 {
-	decode_configs(c);
-
 	/* All Loongson processors covered here define ExcCode 16 as GSExc. */
 	c->options |= MIPS_CPU_GSEXCEX;

@ -1796,6 +1794,8 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 		panic("Unknown Loongson Processor ID!");
 		break;
 	}
+
+	decode_configs(c);
 }
 #else
 static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu) { }
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@ -185,7 +185,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		seq_puts(m, " tx39_cache");
 	if (cpu_has_octeon_cache)
 		seq_puts(m, " octeon_cache");
-	if (cpu_has_fpu)
+	if (raw_cpu_has_fpu)
 		seq_puts(m, " fpu");
 	if (cpu_has_32fpr)
 		seq_puts(m, " 32fpr");
--- a/arch/mips/kernel/syscalls/syscall_n32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
@ -387,3 +387,4 @@
 446	n32	landlock_restrict_self		sys_landlock_restrict_self
 # 447 reserved for memfd_secret
 448	n32	process_mrelease		sys_process_mrelease
+449	n32	futex_waitv			sys_futex_waitv
--- a/arch/mips/kernel/syscalls/syscall_n64.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
@ -363,3 +363,4 @@
 446	n64	landlock_restrict_self		sys_landlock_restrict_self
 # 447 reserved for memfd_secret
 448	n64	process_mrelease		sys_process_mrelease
+449	n64	futex_waitv			sys_futex_waitv
--- a/arch/mips/kernel/syscalls/syscall_o32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
@ -436,3 +436,4 @@
 446	o32	landlock_restrict_self		sys_landlock_restrict_self
 # 447 reserved for memfd_secret
 448	o32	process_mrelease		sys_process_mrelease
+449	o32	futex_waitv			sys_futex_waitv
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@ -1067,7 +1067,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 		r = 1;
 		break;
 	case KVM_CAP_NR_VCPUS:
-		r = num_online_cpus();
+		r = min_t(unsigned int, num_online_cpus(), KVM_MAX_VCPUS);
 		break;
 	case KVM_CAP_MAX_VCPUS:
 		r = KVM_MAX_VCPUS;
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@ -158,6 +158,12 @@ void clk_deactivate(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_deactivate);

+struct clk *clk_get_parent(struct clk *clk)
+{
+	return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
 static inline u32 get_counter_resolution(void)
 {
 	u32 res;
--- a/arch/nds32/include/asm/cacheflush.h
+++ b/arch/nds32/include/asm/cacheflush.h
@ -27,7 +27,6 @@ void flush_cache_vunmap(unsigned long start, unsigned long end);

 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
 void flush_dcache_page(struct page *page);
-void flush_dcache_folio(struct folio *folio);
 void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
 		       unsigned long vaddr, void *dst, void *src, int len);
 void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
--- a/arch/nios2/include/asm/cacheflush.h
+++ b/arch/nios2/include/asm/cacheflush.h
@ -29,7 +29,6 @@ extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 	unsigned long pfn);
 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
 void flush_dcache_page(struct page *page);
-void flush_dcache_folio(struct folio *folio);

 extern void flush_icache_range(unsigned long start, unsigned long end);
 extern void flush_icache_page(struct vm_area_struct *vma, struct page *page);
--- a/arch/parisc/configs/generic-32bit_defconfig
+++ b/arch/parisc/configs/generic-32bit_defconfig
@ -231,6 +231,7 @@ CONFIG_CRYPTO_DEFLATE=y
 CONFIG_CRC_CCITT=m
 CONFIG_CRC_T10DIF=y
 CONFIG_FONTS=y
+CONFIG_PRINTK_TIME=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_MEMORY_INIT=y
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@ -3,38 +3,19 @@
 * Copyright (C) 1999 Hewlett-Packard (Frank Rowand)
 * Copyright (C) 1999 Philipp Rumpf <prumpf@tux.org>
 * Copyright (C) 1999 SuSE GmbH
+ * Copyright (C) 2021 Helge Deller <deller@gmx.de>
 */

 #ifndef _PARISC_ASSEMBLY_H
 #define _PARISC_ASSEMBLY_H

-#define CALLEE_FLOAT_FRAME_SIZE	80
-
 #ifdef CONFIG_64BIT
-#define LDREG	ldd
-#define STREG	std
-#define LDREGX  ldd,s
-#define LDREGM	ldd,mb
-#define STREGM	std,ma
-#define SHRREG	shrd
-#define SHLREG	shld
-#define ANDCM   andcm,*
-#define	COND(x)	* ## x
 #define RP_OFFSET	16
 #define FRAME_SIZE	128
 #define CALLEE_REG_FRAME_SIZE	144
 #define REG_SZ		8
 #define ASM_ULONG_INSN	.dword
 #else	/* CONFIG_64BIT */
-#define LDREG	ldw
-#define STREG	stw
-#define LDREGX  ldwx,s
-#define LDREGM	ldwm
-#define STREGM	stwm
-#define SHRREG	shr
-#define SHLREG	shlw
-#define ANDCM   andcm
-#define COND(x)	x
 #define RP_OFFSET	20
 #define FRAME_SIZE	64
 #define CALLEE_REG_FRAME_SIZE	128
@ -45,6 +26,7 @@
 /* Frame alignment for 32- and 64-bit */
 #define FRAME_ALIGN     64

+#define CALLEE_FLOAT_FRAME_SIZE	80
 #define CALLEE_SAVE_FRAME_SIZE (CALLEE_REG_FRAME_SIZE + CALLEE_FLOAT_FRAME_SIZE)

 #ifdef CONFIG_PA20
@ -67,6 +49,28 @@

 #ifdef __ASSEMBLY__

+#ifdef CONFIG_64BIT
+#define LDREG	ldd
+#define STREG	std
+#define LDREGX  ldd,s
+#define LDREGM	ldd,mb
+#define STREGM	std,ma
+#define SHRREG	shrd
+#define SHLREG	shld
+#define ANDCM   andcm,*
+#define	COND(x)	* ## x
+#else	/* CONFIG_64BIT */
+#define LDREG	ldw
+#define STREG	stw
+#define LDREGX  ldwx,s
+#define LDREGM	ldwm
+#define STREGM	stwm
+#define SHRREG	shr
+#define SHLREG	shlw
+#define ANDCM   andcm
+#define COND(x)	x
+#endif
+
 #ifdef CONFIG_64BIT
 /* the 64-bit pa gnu assembler unfortunately defaults to .level 1.1 or 2.0 so
 * work around that for now... */
@ -143,6 +147,17 @@
 	extrd,u \r, 63-(\sa), 64-(\sa), \t
 	.endm

+	/* Extract unsigned for 32- and 64-bit
+	 * The extru instruction leaves the most significant 32 bits of the
+	 * target register in an undefined state on PA 2.0 systems. */
+	.macro extru_safe r, p, len, t
+#ifdef CONFIG_64BIT
+	extrd,u	\r, 32+(\p), \len, \t
+#else
+	extru	\r, \p, \len, \t
+#endif
+	.endm
+
 	/* load 32-bit 'value' into 'reg' compensating for the ldil
 	 * sign-extension when running in wide mode.
 	 * WARNING!! neither 'value' nor 'reg' can be expressions
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@ -50,7 +50,6 @@ void invalidate_kernel_vmap_range(void *vaddr, int size);

 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
 void flush_dcache_page(struct page *page);
-void flush_dcache_folio(struct folio *folio);

 #define flush_dcache_mmap_lock(mapping)		xa_lock_irq(&mapping->i_pages)
 #define flush_dcache_mmap_unlock(mapping)	xa_unlock_irq(&mapping->i_pages)
--- a/arch/parisc/include/asm/jump_label.h
+++ b/arch/parisc/include/asm/jump_label.h
@ -5,6 +5,7 @@
 #ifndef __ASSEMBLY__

 #include <linux/types.h>
+#include <linux/stringify.h>
 #include <asm/assembly.h>

 #define JUMP_LABEL_NOP_SIZE 4
--- a/arch/parisc/include/asm/rt_sigframe.h
+++ b/arch/parisc/include/asm/rt_sigframe.h
@ -2,7 +2,7 @@
 #ifndef _ASM_PARISC_RT_SIGFRAME_H
 #define _ASM_PARISC_RT_SIGFRAME_H

-#define SIGRETURN_TRAMP 3
+#define SIGRETURN_TRAMP 4
 #define SIGRESTARTBLOCK_TRAMP 5 
 #define TRAMP_SIZE (SIGRETURN_TRAMP + SIGRESTARTBLOCK_TRAMP)

--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@ -366,17 +366,9 @@
 	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if CONFIG_PGTABLE_LEVELS == 3
-	extru		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+	extru_safe	\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
-# if defined(CONFIG_64BIT)
-	extrd,u		\va,63-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
-  #else
-  # if PAGE_SIZE > 4096
-	extru		\va,31-ASM_PGDIR_SHIFT,32-ASM_PGDIR_SHIFT,\index
-  # else
-	extru		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
-  # endif
-# endif
+	extru_safe	\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
 	dep             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 #if CONFIG_PGTABLE_LEVELS < 3
@ -386,7 +378,7 @@
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
 	dep		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	SHLREG		\pmd,PxD_VALUE_SHIFT,\pmd
-	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
+	extru_safe	\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
 	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd /* pmd is now pte */
 	.endm
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@ -288,21 +288,22 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs,
 	   already in userspace. The first words of tramp are used to
 	   save the previous sigrestartblock trampoline that might be
 	   on the stack. We start the sigreturn trampoline at 
-	   SIGRESTARTBLOCK_TRAMP. */
+	   SIGRESTARTBLOCK_TRAMP+X. */
 	err |= __put_user(in_syscall ? INSN_LDI_R25_1 : INSN_LDI_R25_0,
 			&frame->tramp[SIGRESTARTBLOCK_TRAMP+0]);
-	err |= __put_user(INSN_BLE_SR2_R0, 
+	err |= __put_user(INSN_LDI_R20, 
 			&frame->tramp[SIGRESTARTBLOCK_TRAMP+1]);
-	err |= __put_user(INSN_LDI_R20,
+	err |= __put_user(INSN_BLE_SR2_R0, 
 			&frame->tramp[SIGRESTARTBLOCK_TRAMP+2]);
+	err |= __put_user(INSN_NOP, &frame->tramp[SIGRESTARTBLOCK_TRAMP+3]);

-	start = (unsigned long) &frame->tramp[SIGRESTARTBLOCK_TRAMP+0];
-	end = (unsigned long) &frame->tramp[SIGRESTARTBLOCK_TRAMP+3];
+	start = (unsigned long) &frame->tramp[0];
+	end = (unsigned long) &frame->tramp[TRAMP_SIZE];
 	flush_user_dcache_range_asm(start, end);
 	flush_user_icache_range_asm(start, end);

 	/* TRAMP Words 0-4, Length 5 = SIGRESTARTBLOCK_TRAMP
-	 * TRAMP Words 5-7, Length 3 = SIGRETURN_TRAMP
+	 * TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP
 	 * So the SIGRETURN_TRAMP is at the end of SIGRESTARTBLOCK_TRAMP
 	 */
 	rp = (unsigned long) &frame->tramp[SIGRESTARTBLOCK_TRAMP];
--- a/arch/parisc/kernel/signal32.h
+++ b/arch/parisc/kernel/signal32.h
@ -36,7 +36,7 @@ struct compat_regfile {
        compat_int_t rf_sar;
 };

-#define COMPAT_SIGRETURN_TRAMP 3
+#define COMPAT_SIGRETURN_TRAMP 4
 #define COMPAT_SIGRESTARTBLOCK_TRAMP 5
 #define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + \
 				COMPAT_SIGRESTARTBLOCK_TRAMP)
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@ -566,7 +566,7 @@ lws_compare_and_swap:
 	ldo	R%lws_lock_start(%r20), %r28

 	/* Extract eight bits from r26 and hash lock (Bits 3-11) */
-	extru  %r26, 28, 8, %r20
+	extru_safe  %r26, 28, 8, %r20

 	/* Find lock to use, the hash is either one of 0 to
 	   15, multiplied by 16 (keep it 16-byte aligned)
@ -751,7 +751,7 @@ cas2_lock_start:
 	ldo	R%lws_lock_start(%r20), %r28

 	/* Extract eight bits from r26 and hash lock (Bits 3-11) */
-	extru  %r26, 28, 8, %r20
+	extru_safe  %r26, 28, 8, %r20

 	/* Find lock to use, the hash is either one of 0 to
 	   15, multiplied by 16 (keep it 16-byte aligned)
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@ -446,3 +446,4 @@
 446	common	landlock_restrict_self		sys_landlock_restrict_self
 # 447 reserved for memfd_secret
 448	common	process_mrelease		sys_process_mrelease
+449	common	futex_waitv			sys_futex_waitv
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@ -57,8 +57,6 @@ SECTIONS
 {
 	. = KERNEL_BINARY_TEXT_START;

-	_stext = .;	/* start of kernel text, includes init code & data */
-
 	__init_begin = .;
 	HEAD_TEXT_SECTION
 	MLONGCALL_DISCARD(INIT_TEXT_SECTION(8))
@ -82,6 +80,7 @@ SECTIONS
 	/* freed after init ends here */

 	_text = .;		/* Text and read-only data */
+	_stext = .;
 	MLONGCALL_KEEP(INIT_TEXT_SECTION(8))
 	.text ALIGN(PAGE_SIZE) : {
 		TEXT_TEXT
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@ -196,3 +196,6 @@ clean-files := vmlinux.lds
 # Force dependency (incbin is bad)
 $(obj)/vdso32_wrapper.o : $(obj)/vdso32/vdso32.so.dbg
 $(obj)/vdso64_wrapper.o : $(obj)/vdso64/vdso64.so.dbg
+
+# for cleaning
+subdir- += vdso32 vdso64
--- a/arch/powerpc/kernel/head_32.h
+++ b/arch/powerpc/kernel/head_32.h
@ -202,11 +202,11 @@ _ASM_NOKPROBE_SYMBOL(\name\()_virt)
 	mfspr	r1, SPRN_SPRG_THREAD
 	lwz	r1, TASK_CPU - THREAD(r1)
 	slwi	r1, r1, 3
-	addis	r1, r1, emergency_ctx@ha
+	addis	r1, r1, emergency_ctx-PAGE_OFFSET@ha
 #else
-	lis	r1, emergency_ctx@ha
+	lis	r1, emergency_ctx-PAGE_OFFSET@ha
 #endif
-	lwz	r1, emergency_ctx@l(r1)
+	lwz	r1, emergency_ctx-PAGE_OFFSET@l(r1)
 	addi	r1, r1, THREAD_SIZE - INT_FRAME_SIZE
 	EXCEPTION_PROLOG_2 0 vmap_stack_overflow
 	prepare_transfer_to_handler
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@ -733,6 +733,7 @@ _GLOBAL(mmu_pin_tlb)
 #ifdef CONFIG_PIN_TLB_DATA
 	LOAD_REG_IMMEDIATE(r6, PAGE_OFFSET)
 	LOAD_REG_IMMEDIATE(r7, MI_SVALID | MI_PS8MEG | _PMD_ACCESSED)
+	li	r8, 0
 #ifdef CONFIG_PIN_TLB_IMMR
 	li	r0, 3
 #else
@ -741,26 +742,26 @@ _GLOBAL(mmu_pin_tlb)
 	mtctr	r0
 	cmpwi	r4, 0
 	beq	4f
-	LOAD_REG_IMMEDIATE(r8, 0xf0 | _PAGE_RO | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT)
 	LOAD_REG_ADDR(r9, _sinittext)

 2:	ori	r0, r6, MD_EVALID
+	ori	r12, r8, 0xf0 | _PAGE_RO | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT
 	mtspr	SPRN_MD_CTR, r5
 	mtspr	SPRN_MD_EPN, r0
 	mtspr	SPRN_MD_TWC, r7
-	mtspr	SPRN_MD_RPN, r8
+	mtspr	SPRN_MD_RPN, r12
 	addi	r5, r5, 0x100
 	addis	r6, r6, SZ_8M@h
 	addis	r8, r8, SZ_8M@h
 	cmplw	r6, r9
 	bdnzt	lt, 2b
-
-4:	LOAD_REG_IMMEDIATE(r8, 0xf0 | _PAGE_DIRTY | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT)
+4:
 2:	ori	r0, r6, MD_EVALID
+	ori	r12, r8, 0xf0 | _PAGE_DIRTY | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT
 	mtspr	SPRN_MD_CTR, r5
 	mtspr	SPRN_MD_EPN, r0
 	mtspr	SPRN_MD_TWC, r7
-	mtspr	SPRN_MD_RPN, r8
+	mtspr	SPRN_MD_RPN, r12
 	addi	r5, r5, 0x100
 	addis	r6, r6, SZ_8M@h
 	addis	r8, r8, SZ_8M@h
@ -781,7 +782,7 @@ _GLOBAL(mmu_pin_tlb)
 #endif
 #if defined(CONFIG_PIN_TLB_IMMR) || defined(CONFIG_PIN_TLB_DATA)
 	lis	r0, (MD_RSV4I | MD_TWAM)@h
-	mtspr	SPRN_MI_CTR, r0
+	mtspr	SPRN_MD_CTR, r0
 #endif
 	mtspr	SPRN_SRR1, r10
 	mtspr	SPRN_SRR0, r11
--- a/arch/powerpc/kernel/signal.h
+++ b/arch/powerpc/kernel/signal.h
@ -25,8 +25,14 @@ static inline int __get_user_sigset(sigset_t *dst, const sigset_t __user *src)

 	return __get_user(dst->sig[0], (u64 __user *)&src->sig[0]);
 }
-#define unsafe_get_user_sigset(dst, src, label) \
-	unsafe_get_user((dst)->sig[0], (u64 __user *)&(src)->sig[0], label)
+#define unsafe_get_user_sigset(dst, src, label) do {			\
+	sigset_t *__dst = dst;						\
+	const sigset_t __user *__src = src;				\
+	int i;								\
+									\
+	for (i = 0; i < _NSIG_WORDS; i++)				\
+		unsafe_get_user(__dst->sig[i], &__src->sig[i], label);	\
+} while (0)

 #ifdef CONFIG_VSX
 extern unsigned long copy_vsx_to_user(void __user *to,
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@ -1063,7 +1063,7 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx,
 	 * We kill the task with a SIGSEGV in this situation.
 	 */
 	if (do_setcontext(new_ctx, regs, 0)) {
-		force_fatal_sig(SIGSEGV);
+		force_exit_sig(SIGSEGV);
 		return -EFAULT;
 	}

--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@ -704,7 +704,7 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx,
 	 */

 	if (__get_user_sigset(&set, &new_ctx->uc_sigmask)) {
-		force_fatal_sig(SIGSEGV);
+		force_exit_sig(SIGSEGV);
 		return -EFAULT;
 	}
 	set_current_blocked(&set);
@ -713,7 +713,7 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx,
 		return -EFAULT;
 	if (__unsafe_restore_sigcontext(current, NULL, 0, &new_ctx->uc_mcontext)) {
 		user_read_access_end();
-		force_fatal_sig(SIGSEGV);
+		force_exit_sig(SIGSEGV);
 		return -EFAULT;
 	}
 	user_read_access_end();
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@ -528,3 +528,4 @@
 446	common	landlock_restrict_self		sys_landlock_restrict_self
 # 447 reserved for memfd_secret
 448	common	process_mrelease		sys_process_mrelease
+449	common  futex_waitv                     sys_futex_waitv
--- a/arch/powerpc/kernel/watchdog.c
+++ b/arch/powerpc/kernel/watchdog.c
@ -187,6 +187,12 @@ static void watchdog_smp_panic(int cpu, u64 tb)
 	if (sysctl_hardlockup_all_cpu_backtrace)
 		trigger_allbutself_cpu_backtrace();

+	/*
+	 * Force flush any remote buffers that might be stuck in IRQ context
+	 * and therefore could not run their irq_work.
+	 */
+	printk_trigger_flush();
+
 	if (hardlockup_panic)
 		nmi_panic(NULL, "Hard LOCKUP");

--- a/arch/powerpc/kvm/book3s_hv_builtin.c
+++ b/arch/powerpc/kvm/book3s_hv_builtin.c
@ -695,6 +695,7 @@ static void flush_guest_tlb(struct kvm *kvm)
 				       "r" (0) : "memory");
 		}
 		asm volatile("ptesync": : :"memory");
+		// POWER9 congruence-class TLBIEL leaves ERAT. Flush it now.
 		asm volatile(PPC_RADIX_INVALIDATE_ERAT_GUEST : : :"memory");
 	} else {
 		for (set = 0; set < kvm->arch.tlb_sets; ++set) {
@ -705,7 +706,9 @@ static void flush_guest_tlb(struct kvm *kvm)
 			rb += PPC_BIT(51);	/* increment set number */
 		}
 		asm volatile("ptesync": : :"memory");
-		asm volatile(PPC_ISA_3_0_INVALIDATE_ERAT : : :"memory");
+		// POWER9 congruence-class TLBIEL leaves ERAT. Flush it now.
+		if (cpu_has_feature(CPU_FTR_ARCH_300))
+			asm volatile(PPC_ISA_3_0_INVALIDATE_ERAT : : :"memory");
 	}
 }

--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@ -2005,7 +2005,7 @@ hcall_real_table:
 	.globl	hcall_real_table_end
 hcall_real_table_end:

-_GLOBAL(kvmppc_h_set_xdabr)
+_GLOBAL_TOC(kvmppc_h_set_xdabr)
 EXPORT_SYMBOL_GPL(kvmppc_h_set_xdabr)
 	andi.	r0, r5, DABRX_USER | DABRX_KERNEL
 	beq	6f
@ -2015,7 +2015,7 @@ EXPORT_SYMBOL_GPL(kvmppc_h_set_xdabr)
 6:	li	r3, H_PARAMETER
 	blr

-_GLOBAL(kvmppc_h_set_dabr)
+_GLOBAL_TOC(kvmppc_h_set_dabr)
 EXPORT_SYMBOL_GPL(kvmppc_h_set_dabr)
 	li	r5, DABRX_USER | DABRX_KERNEL
 3:
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@ -641,9 +641,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 		 * implementations just count online CPUs.
 		 */
 		if (hv_enabled)
-			r = num_present_cpus();
+			r = min_t(unsigned int, num_present_cpus(), KVM_MAX_VCPUS);
 		else
-			r = num_online_cpus();
+			r = min_t(unsigned int, num_online_cpus(), KVM_MAX_VCPUS);
 		break;
 	case KVM_CAP_MAX_VCPUS:
 		r = KVM_MAX_VCPUS;
--- a/arch/powerpc/mm/nohash/kaslr_booke.c
+++ b/arch/powerpc/mm/nohash/kaslr_booke.c
@ -314,7 +314,7 @@ static unsigned long __init kaslr_choose_location(void *dt_ptr, phys_addr_t size
 		pr_warn("KASLR: No safe seed for randomizing the kernel base.\n");

 	ram = min_t(phys_addr_t, __max_low_memory, size);
-	ram = map_mem_in_cams(ram, CONFIG_LOWMEM_CAM_NUM, true, false);
+	ram = map_mem_in_cams(ram, CONFIG_LOWMEM_CAM_NUM, true, true);
 	linear_sz = min_t(unsigned long, ram, SZ_512M);

 	/* If the linear size is smaller than 64M, do not randmize */
--- a/arch/powerpc/mm/nohash/tlb.c
+++ b/arch/powerpc/mm/nohash/tlb.c
@ -645,7 +645,7 @@ static void early_init_this_mmu(void)

 		if (map)
 			linear_map_top = map_mem_in_cams(linear_map_top,
-							 num_cams, true, true);
+							 num_cams, false, true);
 	}
 #endif

@ -766,7 +766,7 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base,
 		num_cams = (mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY) / 4;

 		linear_sz = map_mem_in_cams(first_memblock_size, num_cams,
-					    false, true);
+					    true, true);

 		ppc64_rma_size = min_t(u64, linear_sz, 0x40000000);
 	} else
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@ -376,9 +376,9 @@ static void initialize_form2_numa_distance_lookup_table(void)
 {
 	int i, j;
 	struct device_node *root;
-	const __u8 *numa_dist_table;
+	const __u8 *form2_distances;
 	const __be32 *numa_lookup_index;
-	int numa_dist_table_length;
+	int form2_distances_length;
 	int max_numa_index, distance_index;

 	if (firmware_has_feature(FW_FEATURE_OPAL))
@ -392,45 +392,41 @@ static void initialize_form2_numa_distance_lookup_table(void)
 	max_numa_index = of_read_number(&numa_lookup_index[0], 1);

 	/* first element of the array is the size and is encode-int */
-	numa_dist_table = of_get_property(root, "ibm,numa-distance-table", NULL);
-	numa_dist_table_length = of_read_number((const __be32 *)&numa_dist_table[0], 1);
+	form2_distances = of_get_property(root, "ibm,numa-distance-table", NULL);
+	form2_distances_length = of_read_number((const __be32 *)&form2_distances[0], 1);
 	/* Skip the size which is encoded int */
-	numa_dist_table += sizeof(__be32);
+	form2_distances += sizeof(__be32);

-	pr_debug("numa_dist_table_len = %d, numa_dist_indexes_len = %d\n",
-		 numa_dist_table_length, max_numa_index);
+	pr_debug("form2_distances_len = %d, numa_dist_indexes_len = %d\n",
+		 form2_distances_length, max_numa_index);

 	for (i = 0; i < max_numa_index; i++)
 		/* +1 skip the max_numa_index in the property */
 		numa_id_index_table[i] = of_read_number(&numa_lookup_index[i + 1], 1);


-	if (numa_dist_table_length != max_numa_index * max_numa_index) {
+	if (form2_distances_length != max_numa_index * max_numa_index) {
 		WARN(1, "Wrong NUMA distance information\n");
-		/* consider everybody else just remote. */
-		for (i = 0;  i < max_numa_index; i++) {
-			for (j = 0; j < max_numa_index; j++) {
-				int nodeA = numa_id_index_table[i];
-				int nodeB = numa_id_index_table[j];
-
-				if (nodeA == nodeB)
-					numa_distance_table[nodeA][nodeB] = LOCAL_DISTANCE;
-				else
-					numa_distance_table[nodeA][nodeB] = REMOTE_DISTANCE;
-			}
-		}
+		form2_distances = NULL; // don't use it
 	}
-
 	distance_index = 0;
 	for (i = 0;  i < max_numa_index; i++) {
 		for (j = 0; j < max_numa_index; j++) {
 			int nodeA = numa_id_index_table[i];
 			int nodeB = numa_id_index_table[j];
+			int dist;

-			numa_distance_table[nodeA][nodeB] = numa_dist_table[distance_index++];
-			pr_debug("dist[%d][%d]=%d ", nodeA, nodeB, numa_distance_table[nodeA][nodeB]);
+			if (form2_distances)
+				dist = form2_distances[distance_index++];
+			else if (nodeA == nodeB)
+				dist = LOCAL_DISTANCE;
+			else
+				dist = REMOTE_DISTANCE;
+			numa_distance_table[nodeA][nodeB] = dist;
+			pr_debug("dist[%d][%d]=%d ", nodeA, nodeB, dist);
 		}
 	}
+
 	of_node_put(root);
 }

--- a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
+++ b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
@ -186,7 +186,6 @@ static int mcu_probe(struct i2c_client *client)
 static int mcu_remove(struct i2c_client *client)
 {
 	struct mcu *mcu = i2c_get_clientdata(client);
-	int ret;

 	kthread_stop(shutdown_thread);

--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@ -1094,15 +1094,6 @@ static phys_addr_t ddw_memory_hotplug_max(void)
 	phys_addr_t max_addr = memory_hotplug_max();
 	struct device_node *memory;

-	/*
-	 * The "ibm,pmemory" can appear anywhere in the address space.
-	 * Assuming it is still backed by page structs, set the upper limit
-	 * for the huge DMA window as MAX_PHYSMEM_BITS.
-	 */
-	if (of_find_node_by_type(NULL, "ibm,pmemory"))
-		return (sizeof(phys_addr_t) * 8 <= MAX_PHYSMEM_BITS) ?
-			(phys_addr_t) -1 : (1ULL << MAX_PHYSMEM_BITS);
-
 	for_each_node_by_type(memory, "memory") {
 		unsigned long start, size;
 		int n_mem_addr_cells, n_mem_size_cells, len;
@ -1238,7 +1229,6 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 	u32 ddw_avail[DDW_APPLICABLE_SIZE];
 	struct dma_win *window;
 	struct property *win64;
-	bool ddw_enabled = false;
 	struct failed_ddw_pdn *fpdn;
 	bool default_win_removed = false, direct_mapping = false;
 	bool pmem_present;
@ -1253,7 +1243,6 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn)

 	if (find_existing_ddw(pdn, &dev->dev.archdata.dma_offset, &len)) {
 		direct_mapping = (len >= max_ram_len);
-		ddw_enabled = true;
 		goto out_unlock;
 	}

@ -1367,8 +1356,10 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 		len = order_base_2(query.largest_available_block << page_shift);
 		win_name = DMA64_PROPNAME;
 	} else {
-		direct_mapping = true;
-		win_name = DIRECT64_PROPNAME;
+		direct_mapping = !default_win_removed ||
+			(len == MAX_PHYSMEM_BITS) ||
+			(!pmem_present && (len == max_ram_len));
+		win_name = direct_mapping ? DIRECT64_PROPNAME : DMA64_PROPNAME;
 	}

 	ret = create_ddw(dev, ddw_avail, &create, page_shift, len);
@ -1406,8 +1397,8 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 			dev_info(&dev->dev, "failed to map DMA window for %pOF: %d\n",
 				 dn, ret);

-		/* Make sure to clean DDW if any TCE was set*/
-		clean_dma_window(pdn, win64->value);
+			/* Make sure to clean DDW if any TCE was set*/
+			clean_dma_window(pdn, win64->value);
 			goto out_del_list;
 		}
 	} else {
@ -1454,7 +1445,6 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 	spin_unlock(&dma_win_list_lock);

 	dev->dev.archdata.dma_offset = win_addr;
-	ddw_enabled = true;
 	goto out_unlock;

 out_del_list:
@ -1490,10 +1480,10 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 	 * as RAM, then we failed to create a window to cover persistent
 	 * memory and need to set the DMA limit.
 	 */
-	if (pmem_present && ddw_enabled && direct_mapping && len == max_ram_len)
+	if (pmem_present && direct_mapping && len == max_ram_len)
 		dev->dev.bus_dma_limit = dev->dev.archdata.dma_offset + (1ULL << len);

-    return ddw_enabled && direct_mapping;
+	return direct_mapping;
 }

 static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
--- a/arch/powerpc/sysdev/xive/Kconfig
+++ b/arch/powerpc/sysdev/xive/Kconfig
@ -3,7 +3,6 @@ config PPC_XIVE
 	bool
 	select PPC_SMP_MUXED_IPI
 	select HARDIRQS_SW_RESEND
-	select IRQ_DOMAIN_NOMAP

 config PPC_XIVE_NATIVE
 	bool
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@ -1443,8 +1443,7 @@ static const struct irq_domain_ops xive_irq_domain_ops = {

 static void __init xive_init_host(struct device_node *np)
 {
-	xive_irq_domain = irq_domain_add_nomap(np, XIVE_MAX_IRQ,
-					       &xive_irq_domain_ops, NULL);
+	xive_irq_domain = irq_domain_add_tree(np, &xive_irq_domain_ops, NULL);
 	if (WARN_ON(xive_irq_domain == NULL))
 		return;
 	irq_set_default_host(xive_irq_domain);
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@ -107,11 +107,13 @@ PHONY += vdso_install
 vdso_install:
 	$(Q)$(MAKE) $(build)=arch/riscv/kernel/vdso $@

+ifeq ($(KBUILD_EXTMOD),)
 ifeq ($(CONFIG_MMU),y)
 prepare: vdso_prepare
 vdso_prepare: prepare0
 	$(Q)$(MAKE) $(build)=arch/riscv/kernel/vdso include/generated/vdso-offsets.h
 endif
+endif

 ifneq ($(CONFIG_XIP_KERNEL),y)
 ifeq ($(CONFIG_RISCV_M_MODE)$(CONFIG_SOC_CANAAN),yy)
--- a/arch/riscv/configs/defconfig
+++ b/arch/riscv/configs/defconfig
@ -19,6 +19,8 @@ CONFIG_SOC_VIRT=y
 CONFIG_SOC_MICROCHIP_POLARFIRE=y
 CONFIG_SMP=y
 CONFIG_HOTPLUG_CPU=y
+CONFIG_VIRTUALIZATION=y
+CONFIG_KVM=m
 CONFIG_JUMP_LABEL=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
--- a/arch/riscv/configs/rv32_defconfig
+++ b/arch/riscv/configs/rv32_defconfig
@ -19,6 +19,8 @@ CONFIG_SOC_VIRT=y
 CONFIG_ARCH_RV32I=y
 CONFIG_SMP=y
 CONFIG_HOTPLUG_CPU=y
+CONFIG_VIRTUALIZATION=y
+CONFIG_KVM=m
 CONFIG_JUMP_LABEL=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
--- a/arch/riscv/kvm/vcpu.c
+++ b/arch/riscv/kvm/vcpu.c
@ -740,7 +740,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 		 * Ensure we set mode to IN_GUEST_MODE after we disable
 		 * interrupts and before the final VCPU requests check.
 		 * See the comment in kvm_vcpu_exiting_guest_mode() and
-		 * Documentation/virtual/kvm/vcpu-requests.rst
+		 * Documentation/virt/kvm/vcpu-requests.rst
 		 */
 		vcpu->mode = IN_GUEST_MODE;

--- a/arch/riscv/kvm/vcpu_sbi.c
+++ b/arch/riscv/kvm/vcpu_sbi.c
@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-/**
+/*
 * Copyright (c) 2019 Western Digital Corporation or its affiliates.
 *
 * Authors:
--- a/arch/riscv/kvm/vm.c
+++ b/arch/riscv/kvm/vm.c
@ -74,7 +74,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 		r = 1;
 		break;
 	case KVM_CAP_NR_VCPUS:
-		r = num_online_cpus();
+		r = min_t(unsigned int, num_online_cpus(), KVM_MAX_VCPUS);
 		break;
 	case KVM_CAP_MAX_VCPUS:
 		r = KVM_MAX_VCPUS;
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@ -47,7 +47,7 @@ config ARCH_SUPPORTS_UPROBES
 config KASAN_SHADOW_OFFSET
 	hex
 	depends on KASAN
-	default 0x18000000000000
+	default 0x1C000000000000

 config S390
 	def_bool y
@ -194,6 +194,7 @@ config S390
 	select HAVE_RELIABLE_STACKTRACE
 	select HAVE_RSEQ
 	select HAVE_SAMPLE_FTRACE_DIRECT
+	select HAVE_SAMPLE_FTRACE_DIRECT_MULTI
 	select HAVE_SOFTIRQ_ON_OWN_STACK
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_VIRT_CPU_ACCOUNTING
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@ -77,10 +77,12 @@ KBUILD_AFLAGS_DECOMPRESSOR += $(aflags-y)
 KBUILD_CFLAGS_DECOMPRESSOR += $(cflags-y)

 ifneq ($(call cc-option,-mstack-size=8192 -mstack-guard=128),)
-cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
-ifeq ($(call cc-option,-mstack-size=8192),)
-cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
-endif
+  CC_FLAGS_CHECK_STACK := -mstack-size=$(STACK_SIZE)
+  ifeq ($(call cc-option,-mstack-size=8192),)
+    CC_FLAGS_CHECK_STACK += -mstack-guard=$(CONFIG_STACK_GUARD)
+  endif
+  export CC_FLAGS_CHECK_STACK
+  cflags-$(CONFIG_CHECK_STACK) += $(CC_FLAGS_CHECK_STACK)
 endif

 ifdef CONFIG_EXPOLINE
--- a/Show more
+++ b/Show more